Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

heat pump for domestic hot water help requested

David Van Wickler_3
David Van Wickler_3 Member Posts: 63
in THE MAIN WALL
I have a 75,000 Btuh Heat pump capable of 130F outlet temperature.

My thinks is to go with two (33) TurboMax indirects for thermal storage and sufficient surface area from the heat exchanger.

This would give me about 72 total gallons for fluid mass - But I'm concerned about the temperature rise. If I pipe the tanks in parallel the velocity would be half what one tank would be and possibly provide suffient time to raise the DHW to at least 115-120F.

Or do I use a Turbomax with a storage tank and circulate the turbomax through the storage tank to provide sufficient DHW storage volume?

The owner is very energy conservative and is using low flow shower heads. There are no plans for body spray and deluge heads.

The heat pump is supplied by an existing 1200 gallon tank and 6" well. The discharge is into a 100 year old brick lined well that has a 6" concrete cap on it.

Comments

  • Larry Weingarten
    Larry Weingarten Member Posts: 3,590
    What is the...

    ...flow rate and the temperature rise through the heat pump? If the flow is slow enough, plumbing the tanks in series could perform nicely. I'd also heat the last tank first. (if that makes any sense ;~))

    Yours, Larry
  • David Van Wickler_3
    David Van Wickler_3 Member Posts: 63
    flow rate

    10 degree drop through the heat pump - i.e. 130 outlet 120 inlet
This discussion has been closed.

Categories